Riot police officers clash with protesters during a demonstration against a labor law bill, Thursday, May 19, 2016 in Paris. France is facing tense weeks of strikes and other union actions against the law, allowing longer workdays and easier layoffs, and which has met fierce resistance in Parliament and in the streets. (Photo by Laurent Cirpriani/AP Photo)

French riot police officers stand guard after receiving some paint on their uniform, during a demonstration to protest against the government's labour reform on May 19, 2016 in Bordeaux. France was disrupted by a third straight day of strikes and demonstrations on May 19 as the prime minister called for protesters who torched a police car to face “harsh” punishment. The labour reforms have sparked two months of protests on France's streets, drawing 68,000 nationwide on Tuesday, police said, while organisers put the turnout at 220,000. (Photo by Georges Gobet/AFP Photo)

Riot police officers detain a man during a demonstration against a labor law bill, Thursday, May 19, 2016 in Paris. France is facing tense weeks of strikes and other union actions against the law, allowing longer workdays and easier layoffs, and which has met fierce resistance in Parliament and in the streets. (Photo by Laurent Cirpriani/AP Photo)

Ballerina Lucila Munaretto, from Argentina,, center, rehearses in Vancouver on Thursday, May 19, 2016. Nine months after suffering brain and spine injuries, Munaretto is about to resume her ballet career. The young dancer will perform for about 45 minutes in a production of Swan Lake on Saturday in Vancouver. (Photo by Darryl Dyck/The Canadian Press via AP Photo)

A Belgian F16 fighter jet flies over during a visit of Belgian King Philippe and Jordan's King Abdullah II at Florennes Military Airbase, in Florennes, Belgium on Wednesday May 18, 2016. The Jordan royals are on a two-day state visit to Belgium. (Photo by Geert Vanden Wijngaert/AP Photo)

In this Monday June, 2. 2014 file photo, some of the escaped Kidnapped girls of the government secondary school Chibok, arrive for a meeting with Borno state governor, Kashim Shettima, in Maiduguri, Nigeria. One of the teenagers kidnapped by Boko Haram extremists over two years ago from a school in northeastern Nigeria has been found with a baby and was reunited Wednesday, May 18, 2016 with her mother – the first of the Chibok girls to be freed since the mass abduction. Nigerian hunters found the young woman and baby wandering near the Sambisa Forest and her uncle describes her as traumatized. (Photo by Jossy Ola/AP Photo)

An opposition supporter gives a flower to a Venezuelan National guard, as he kneels during a protest to demand a referendum to remove President Nicolas Maduro in San Cristobal, Venezuela, May 18, 2016. (Photo by Carlos Eduardo Ramirez/Reuters)

A Garuda Indonesia plane lands at Ngurah Rai International Airport on the Indonesian resort island of Bali May 18, 2016, in this photo taken by Antara Foto. (Photo by Wira Suryantala/Reuters/Antara Foto)

A trishaw is seen stuck in the mud at Elangipitiya village in Aranayaka, Sri Lanka May 19, 2016. (Photo by Dinuka Liyanawatte/Reuters)

Participants dressed in historical uniform take part in a rehearsal for the performance at the inauguration ceremony of President-elect Tsai Ing-wen, in Taipei, Taiwan May 19, 2016. (Photo by Tyrone Siu/Reuters)

Britain Football Soccer, Liverpool team arrive at Liverpool John Lennon Airport, Liverpool John Lennon Airport on May 19, 2016. A member of crew flies a liverpool flag from the cockpit of the plane carrying members of Liverpool team as they return from their Europa League final. (Photo by Phil Noble/Reuters/Livepic)

In this undated handout picture taken recieved on May 19, 2016 from James Cook University shows life on the Great Barrier Reef in Queensland. Australia's Great Barrier Reef could be beyond saving in five years without “now or never” funding to improve water quality as climate change ravages the World Heritage-listed site, scientists warned on May 19, 2016. (Photo by Matt Curnock/AFP Photo/James Cook University)

Specialists inspect a U.S Air Force F-15 Eagle fighter after a certification of the arresting gear in the military air base in Lielvarde, Latvia, May 19, 2016. (Photo by Ints Kalnins/Reuters)

Children, wearing red neckerchiefs, a symbol of the Young Pioneer Organisation, salute during a ceremony for the inauguration of new members on the day of its anniversary at school-lyceum number 12 in the Siberian city of Krasnoyarsk, Russia, May 19, 2016. (Photo by Ilya Naymushin/Reuters)

Russian Foreign Ministry spokeswoman Maria Zakharova dances during the reception in honour of heads of the delegations at the Russia-ASEAN summit in Sochi, Russia, May 19, 2016. (Photo by Host photo agency via Reuters)

Children sit on a window sill at a makeshift camp for refugees and migrants at the Greek-Macedonian border near the village of Idomeni, Greece, May 19, 2016. (Photo by Kostas Tsironis/Reuters)

Actress Frederique Bel poses on the red carpet as she arrives for the screening of the film “Juste la fin du monde” (It's Only the End of the World) in competition at the 69th Cannes Film Festival in Cannes, France, May 19, 2016. (Photo by Eric Gaillard/Reuters)

Singer Iggy Pop, centre, poses for photographers during a photo call for the film Gimme Danger at the 69th international film festival, Cannes, southern France, Thursday, May 19, 2016. (Photo by Joel Ryan/AP Photo)

Candice Pascal attends the “Graduation (Bacalaureat)” Premiere during the 69th annual Cannes Film Festival at the Palais des Festivals on May 19, 2016 in Cannes, France. (Photo by Clemens Bilan/Getty Images)

Henry, an African spurred tortoise, walks in the grass of Central Park as his walker Amalia McCallister sits in New York, U.S., May 19, 2016. (Photo by Shannon Stapleton/Reuters)

The artwork “Perfil del tiempo” by Spanish artist Salvador Dali is on display during the opening of the exhibition “Dali. Obsesiones” (Dali. Obsessions) at the Soumaya Museum in Mexico City, Mexico, 18 May 2016. (Photo by Sashenka Gutierrez/EPA)

A man dresses a statue figure on the monument dedicated to Kiev city founders, in the national Ukrainian costume called Vyshyvanka, on the Independence Square in Kiev, Ukraine, Thursday, May 19, 2016. Ukrainians mark Vyshyvanka Day, named in honour of the Slavic traditional clothing Vyshyvanka. (Photo by Efrem Lukatsky/AP Photo)

A fan runs alongside Gregory Daniel of the United States as he rides during Stage 4 of the Amgen Tour of California on on May 18, 2016 in Salinas, California. (Photo by Ezra Shaw/Getty Images)

A general view of a Neapolitan pizza made to break the world record for the longest pizza ever made, by making a two kilometers margherita (16 inch wide) pizza stretching along the city waterfront, in Naples, Italy, 18 May 2016. (Photo by Ciro Fusco/EPA)

A young buddhist monk cleans the statue of Lord Buddha ahead of his birth anniversary in a monastery in Bhopal, India, 19 May 2016. The 2,560th birth anniversary of Lord Buddha will be celebrated on 21 May all over the world. (Photo by Sanjeev Gupta/EPA)

An attendant holds a Google Inc. Cardboard virtual reality headset to demonstrate SoftBank Group Corp.'s Pepper the humanoid robot at a media briefing in Tokyo, Japan, on Thursday, May 19, 2016. Developers will now be able to build Pepper apps using Android tools, SoftBank announced on Thursday. (Photo by Kiyoshi Ota/Bloomberg)

Anti-government demonstrators argue with Bolivarian National Police blocking them from reaching the headquarters of the national electoral body, CNE, in Caracas, Venezuela, Wednesday, May 18, 2016. The opposition was blocked from marching to the CNE to demand the government allow it to pursue a recall referendum against Venezuela's President Nicolas Maduro. (Photo by Fernando Llano/AP Photo)

In this July 2007 image provided by the University of Hawaii's Institute of Marine Biology, a team of researchers from the university tags a large tiger shark near Lisianski Island in the Northwestern Hawaiian Islands. The researchers released a 2-year study Thursday, May 19, 2016 looking at tiger shark activity around Maui after a number of shark bites in 2012 and 2013 prompted the state to commisson further research. This shark, while not part of this specific study, is an example of some of the sharks the team has handled during their research. (Photo by Luis Roch, University of Hawaii's Institute of Marine Biology via AP Photo)

Migrants push a wagon through the camp towards Greek police at the Macedonian border, in Idomeni, Greece, Wednesday, May 18, 2016. Thousands of stranded refugees and migrants have camped in Idomeni for months after the border was closed. (Photo by Darko Bandic/AP Photo)

In this Wednesday, May 18, 2016, 2016, passers-by pose for photos with emoji masks fixed onto a wall at a shopping mall in Guangzhou in south China's Guangdong province. Emoji icons are popularly used for social media communication as they transcend cultural barriers and are fun to use. (Photo by Chinatopix via AP Photo)

A tug boat leads the way for the world's largest passenger ship, Harmony of the Seas, owned by Royal Caribbean, as it makes her way up Southampton Water, into Southampton, England, Tuesday May 17, 2016, ahead of her maiden cruise. After 32-months being fitted out in a French shipyard the 16-deck Harmony of the Seas will set out on its inaugural voyage on May 22 bound for Barcelona, Spain. (Photo by Andrew Matthews/PA Wire via AP Photo)